Home / 4,949.78-6,830.70-2,711.60

Finding the Fourth Proportional to 4,949.78, 6,830.70 and 2,711.60

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Solution

The fourth proportional to 4,949.78, 6,830.70 and 2,711.60 is: 3,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.78 : 6,830.70 = 2,711.60 : x
  2. Step 2: Convert to fraction form
    4,949.78/6,830.70 = 2,711.60/x
  3. Step 3: Cross multiply
    4,949.78x = 6,830.70 × 2,711.60
  4. Step 4: Simplify right side
    4,949.78x = 18,522,138.11
  5. Step 5: Solve for x
    x = 18,522,138.11/4,949.78
  6. Step 6: Final answer
    x = 3,742.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.